When Integration Servers are deployed in a cluster, the servers in that cluster automatically share information about the registered polling notifications. The adapter runtime automatically coordinates polling and some callbacks among instances of the same polling notification node on different servers in a cluster.

This coordination of clustered polling notifications requires no special coding by the adapter developers. However, there are design considerations for adapters that is used in a cluster. There are also global, adapter-specific, and node-specific configuration options that control how coordination is performed. At a minimum, adapter developers must specify configuration values that are appropriate for the adapter.